Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Appropriate Durations and Measures for 'Ceriodaphnia' Toxicity Tests.
Author McNaught, D. C. ; Mount, D. I. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;Minnesota Univ., Minneapolis. Dept. of Ecology and Behavioral Biology.
Year Published 1984
Report Number EPA/600/D-84/204;
Stock Number PB84-234665
Additional Subjects Toxicology ; Raisin River ; Natality ; Bioassay ; Effluents ; Ceriodaphnia ; Ecosystems ; Water pollution effects(Animals) ; Life tables
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB84-234665 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 18p
The Mount-Norberg test, which employs a measure of the size of three broods over seven days, has been used extensively in toxicity testing. The authors have applied it to estimating sublethal ecosystem effects of complex effluents in the Raisin River drainage (of Michigan) on the downstream, food-rich communities of Lake Erie. Using an expanded but traditional life-table approach, the authors observed that the 7-day test provided estimates of natality (Mx) which significantly differed from bioassay results of 14 to 21 days duration. Therefore the authors conducted an analysis of interactions between duration (times of 0-7, 0-14, 0-21, 0-28 days) and treatment (toxicant levels), and found an appropriate duration of 14 days for food-rich Lake Erie environments.